linux-kernel - Re: kernel internal built in module loading order

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Message-ID: <Pine.LNX.4.61.0610210114170.10103@yvahk01.tjqt.qr>
Date:	Sat, 21 Oct 2006 01:17:28 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Jim <yh@...mail.com.au>
cc:	linux-kernel@...r.kernel.org
Subject: Re: kernel internal built in module loading order


> Does the kernel load internal built in modules (obj-y) in a certain 
> order,

Yes. As far as I can tell:

- special ordering (when you find __define_initcall in the 
kernel source, you know)

and

- linking order

play a role.

> or
> in a random order? Does the kernel internal module loading based on a
> configuration file?

/etc/modprobe.conf, but the proper answer would be "no".

> I am running an ARM system, is there a way to delay the Ethernet 
> module loading
> until some other internal modules are loaded?

I am sure you can use some modprobe magic, such as:

  install 8139too /usr/local/bin/my-8139-loader

And your 8139-loader contains:

  #!/bin/bash

  while ! condition; do
	sleep 1;
  done;
  modprobe 8139too;

I just don't know how well that fares when you are trying to modprobe 
from within modprobe.


	-`J'
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